/**
 * marked - a markdown parser
 * Copyright (c) 2011-2013, Christopher Jeffrey. (MIT Licensed)
 * https://github.com/chjj/marked
 */

(function () {
    /**
     * Block-Level Grammar
     */

    var block = {
        newline: /^\n+/,
        code: /^( {4}[^\n]+\n*)+/,
        fences: noop,
        hr: /^( *[-*_]){3,} *(?:\n+|$)/,
        heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
        nptable: noop,
        lheading: /^([^\n]+)\n *(=|-){3,} *\n*/,
        blockquote: /^( *>[^\n]+(\n[^\n]+)*\n*)+/,
        list: /^( *)(bull) [\s\S]+?(?:hr|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
        html: /^ *(?:comment|closed|closing) *(?:\n{2,}|\s*$)/,
        def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
        table: noop,
        paragraph:
            /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
        text: /^[^\n]+/
    };

    block.bullet = /(?:[*+-]|\d+\.)/;
    block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
    block.item = replace(block.item, "gm")(/bull/g, block.bullet)();

    block.list = replace(block.list)(/bull/g, block.bullet)(
        "hr",
        /\n+(?=(?: *[-*_]){3,} *(?:\n+|$))/
    )();

    block._tag =
        "(?!(?:" +
        "a|em|strong|small|s|cite|q|dfn|abbr|data|time|code" +
        "|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo" +
        "|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|@)\\b";

    block.html = replace(block.html)("comment", /<!--[\s\S]*?-->/)(
        "closed",
        /<(tag)[\s\S]+?<\/\1>/
    )("closing", /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/)(/tag/g, block._tag)();

    block.paragraph = replace(block.paragraph)("hr", block.hr)(
        "heading",
        block.heading
    )("lheading", block.lheading)("blockquote", block.blockquote)(
        "tag",
        "<" + block._tag
    )("def", block.def)();

    /**
     * Normal Block Grammar
     */

    block.normal = merge({}, block);

    /**
     * GFM Block Grammar
     */

    block.gfm = merge({}, block.normal, {
        fences: /^ *(`{3,}|~{3,}) *(\S+)? *\n([\s\S]+?)\s*\1 *(?:\n+|$)/,
        paragraph: /^/
    });

    block.gfm.paragraph = replace(block.paragraph)(
        "(?!",
        "(?!" + block.gfm.fences.source.replace("\\1", "\\2") + "|"
    )();

    /**
     * GFM + Tables Block Grammar
     */

    block.tables = merge({}, block.gfm, {
        nptable:
            /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,
        table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/
    });

    /**
     * Block Lexer
     */

    function Lexer(options) {
        this.tokens = [];
        this.tokens.links = {};
        this.options = options || marked.defaults;
        this.rules = block.normal;

        if (this.options.gfm) {
            if (this.options.tables) {
                this.rules = block.tables;
            } else {
                this.rules = block.gfm;
            }
        }
    }

    /**
     * Expose Block Rules
     */

    Lexer.rules = block;

    /**
     * Static Lex Method
     */

    Lexer.lex = function (src, options) {
        var lexer = new Lexer(options);
        return lexer.lex(src);
    };

    /**
     * Preprocessing
     */

    Lexer.prototype.lex = function (src) {
        src = src
            .replace(/\r\n|\r/g, "\n")
            .replace(/\t/g, "    ")
            .replace(/\u00a0/g, " ")
            .replace(/\u2424/g, "\n");

        return this.token(src, true);
    };

    /**
     * Lexing
     */

    Lexer.prototype.token = function (src, top) {
        var src = src.replace(/^ +$/gm, ""),
            next,
            loose,
            cap,
            bull,
            b,
            item,
            space,
            i,
            l;

        while (src) {
            // newline
            if ((cap = this.rules.newline.exec(src))) {
                src = src.substring(cap[0].length);
                if (cap[0].length > 1) {
                    this.tokens.push({
                        type: "space"
                    });
                }
            }

            // code
            if ((cap = this.rules.code.exec(src))) {
                src = src.substring(cap[0].length);
                cap = cap[0].replace(/^ {4}/gm, "");
                this.tokens.push({
                    type: "code",
                    text: !this.options.pedantic ? cap.replace(/\n+$/, "") : cap
                });
                continue;
            }

            // fences (gfm)
            if ((cap = this.rules.fences.exec(src))) {
                src = src.substring(cap[0].length);
                this.tokens.push({
                    type: "code",
                    lang: cap[2],
                    text: cap[3]
                });
                continue;
            }

            // heading
            if ((cap = this.rules.heading.exec(src))) {
                src = src.substring(cap[0].length);
                this.tokens.push({
                    type: "heading",
                    depth: cap[1].length,
                    text: cap[2]
                });
                continue;
            }

            // table no leading pipe (gfm)
            if (top && (cap = this.rules.nptable.exec(src))) {
                src = src.substring(cap[0].length);

                item = {
                    type: "table",
                    header: cap[1].replace(/^ *| *\| *$/g, "").split(/ *\| */),
                    align: cap[2].replace(/^ *|\| *$/g, "").split(/ *\| */),
                    cells: cap[3].replace(/\n$/, "").split("\n")
                };

                for (i = 0; i < item.align.length; i++) {
                    if (/^ *-+: *$/.test(item.align[i])) {
                        item.align[i] = "right";
                    } else if (/^ *:-+: *$/.test(item.align[i])) {
                        item.align[i] = "center";
                    } else if (/^ *:-+ *$/.test(item.align[i])) {
                        item.align[i] = "left";
                    } else {
                        item.align[i] = null;
                    }
                }

                for (i = 0; i < item.cells.length; i++) {
                    item.cells[i] = item.cells[i].split(/ *\| */);
                }

                this.tokens.push(item);

                continue;
            }

            // lheading
            if ((cap = this.rules.lheading.exec(src))) {
                src = src.substring(cap[0].length);
                this.tokens.push({
                    type: "heading",
                    depth: cap[2] === "=" ? 1 : 2,
                    text: cap[1]
                });
                continue;
            }

            // hr
            if ((cap = this.rules.hr.exec(src))) {
                src = src.substring(cap[0].length);
                this.tokens.push({
                    type: "hr"
                });
                continue;
            }

            // blockquote
            if ((cap = this.rules.blockquote.exec(src))) {
                src = src.substring(cap[0].length);

                this.tokens.push({
                    type: "blockquote_start"
                });

                cap = cap[0].replace(/^ *> ?/gm, "");

                // Pass `top` to keep the current
                // "toplevel" state. This is exactly
                // how markdown.pl works.
                this.token(cap, top);

                this.tokens.push({
                    type: "blockquote_end"
                });

                continue;
            }

            // list
            if ((cap = this.rules.list.exec(src))) {
                src = src.substring(cap[0].length);
                bull = cap[2];

                this.tokens.push({
                    type: "list_start",
                    ordered: bull.length > 1
                });

                // Get each top-level item.
                cap = cap[0].match(this.rules.item);

                next = false;
                l = cap.length;
                i = 0;

                for (; i < l; i++) {
                    item = cap[i];

                    // Remove the list item's bullet
                    // so it is seen as the next token.
                    space = item.length;
                    item = item.replace(/^ *([*+-]|\d+\.) +/, "");

                    // Outdent whatever the
                    // list item contains. Hacky.
                    if (~item.indexOf("\n ")) {
                        space -= item.length;
                        item = !this.options.pedantic
                            ? item.replace(
                                  new RegExp("^ {1," + space + "}", "gm"),
                                  ""
                              )
                            : item.replace(/^ {1,4}/gm, "");
                    }

                    // Determine whether the next list item belongs here.
                    // Backpedal if it does not belong in this list.
                    if (this.options.smartLists && i !== l - 1) {
                        b = block.bullet.exec(cap[i + 1])[0];
                        if (bull !== b && !(bull.length > 1 && b.length > 1)) {
                            src = cap.slice(i + 1).join("\n") + src;
                            i = l - 1;
                        }
                    }

                    // Determine whether item is loose or not.
                    // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
                    // for discount behavior.
                    loose = next || /\n\n(?!\s*$)/.test(item);
                    if (i !== l - 1) {
                        next = item[item.length - 1] === "\n";
                        if (!loose) loose = next;
                    }

                    this.tokens.push({
                        type: loose ? "loose_item_start" : "list_item_start"
                    });

                    // Recurse.
                    this.token(item, false);

                    this.tokens.push({
                        type: "list_item_end"
                    });
                }

                this.tokens.push({
                    type: "list_end"
                });

                continue;
            }

            // html
            if ((cap = this.rules.html.exec(src))) {
                src = src.substring(cap[0].length);
                this.tokens.push({
                    type: this.options.sanitize ? "paragraph" : "html",
                    pre: cap[1] === "pre" || cap[1] === "script",
                    text: cap[0]
                });
                continue;
            }

            // def
            if (top && (cap = this.rules.def.exec(src))) {
                src = src.substring(cap[0].length);
                this.tokens.links[cap[1].toLowerCase()] = {
                    href: cap[2],
                    title: cap[3]
                };
                continue;
            }

            // table (gfm)
            if (top && (cap = this.rules.table.exec(src))) {
                src = src.substring(cap[0].length);

                item = {
                    type: "table",
                    header: cap[1].replace(/^ *| *\| *$/g, "").split(/ *\| */),
                    align: cap[2].replace(/^ *|\| *$/g, "").split(/ *\| */),
                    cells: cap[3].replace(/(?: *\| *)?\n$/, "").split("\n")
                };

                for (i = 0; i < item.align.length; i++) {
                    if (/^ *-+: *$/.test(item.align[i])) {
                        item.align[i] = "right";
                    } else if (/^ *:-+: *$/.test(item.align[i])) {
                        item.align[i] = "center";
                    } else if (/^ *:-+ *$/.test(item.align[i])) {
                        item.align[i] = "left";
                    } else {
                        item.align[i] = null;
                    }
                }

                for (i = 0; i < item.cells.length; i++) {
                    item.cells[i] = item.cells[i]
                        .replace(/^ *\| *| *\| *$/g, "")
                        .split(/ *\| */);
                }

                this.tokens.push(item);

                continue;
            }

            // top-level paragraph
            if (top && (cap = this.rules.paragraph.exec(src))) {
                src = src.substring(cap[0].length);
                this.tokens.push({
                    type: "paragraph",
                    text:
                        cap[1][cap[1].length - 1] === "\n"
                            ? cap[1].slice(0, -1)
                            : cap[1]
                });
                continue;
            }

            // text
            if ((cap = this.rules.text.exec(src))) {
                // Top-level should never reach here.
                src = src.substring(cap[0].length);
                this.tokens.push({
                    type: "text",
                    text: cap[0]
                });
                continue;
            }

            if (src) {
                throw new Error("Infinite loop on byte: " + src.charCodeAt(0));
            }
        }

        return this.tokens;
    };

    /**
     * Inline-Level Grammar
     */

    var inline = {
        escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
        autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
        url: noop,
        tag: /^<!--[\s\S]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
        link: /^!?\[(inside)\]\(href\)/,
        reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
        nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
        strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
        em: /^\b_((?:__|[\s\S])+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
        code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/,
        br: /^ {2,}\n(?!\s*$)/,
        del: noop,
        text: /^[\s\S]+?(?=[\\<!\[_*`]| {2,}\n|$)/
    };

    inline._inside = /(?:\[[^\]]*\]|[^\]]|\](?=[^\[]*\]))*/;
    inline._href = /\s*<?(.*?)>?(?:\s+['"]([\s\S]*?)['"])?\s*/;

    inline.link = replace(inline.link)("inside", inline._inside)(
        "href",
        inline._href
    )();

    inline.reflink = replace(inline.reflink)("inside", inline._inside)();

    /**
     * Normal Inline Grammar
     */

    inline.normal = merge({}, inline);

    /**
     * Pedantic Inline Grammar
     */

    inline.pedantic = merge({}, inline.normal, {
        strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
        em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
    });

    /**
     * GFM Inline Grammar
     */

    inline.gfm = merge({}, inline.normal, {
        escape: replace(inline.escape)("])", "~|])")(),
        url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/,
        del: /^~~(?=\S)([\s\S]*?\S)~~/,
        text: replace(inline.text)("]|", "~]|")("|", "|https?://|")()
    });

    /**
     * GFM + Line Breaks Inline Grammar
     */

    inline.breaks = merge({}, inline.gfm, {
        br: replace(inline.br)("{2,}", "*")(),
        text: replace(inline.gfm.text)("{2,}", "*")()
    });

    /**
     * Inline Lexer & Compiler
     */

    function InlineLexer(links, options) {
        this.options = options || marked.defaults;
        this.links = links;
        this.rules = inline.normal;

        if (!this.links) {
            throw new Error("Tokens array requires a `links` property.");
        }

        if (this.options.gfm) {
            if (this.options.breaks) {
                this.rules = inline.breaks;
            } else {
                this.rules = inline.gfm;
            }
        } else if (this.options.pedantic) {
            this.rules = inline.pedantic;
        }
    }

    /**
     * Expose Inline Rules
     */

    InlineLexer.rules = inline;

    /**
     * Static Lexing/Compiling Method
     */

    InlineLexer.output = function (src, links, options) {
        var inline = new InlineLexer(links, options);
        return inline.output(src);
    };

    /**
     * Lexing/Compiling
     */

    InlineLexer.prototype.output = function (src) {
        var out = "",
            link,
            text,
            href,
            cap;

        while (src) {
            // escape
            if ((cap = this.rules.escape.exec(src))) {
                src = src.substring(cap[0].length);
                out += cap[1];
                continue;
            }

            // autolink
            if ((cap = this.rules.autolink.exec(src))) {
                src = src.substring(cap[0].length);
                if (cap[2] === "@") {
                    text =
                        cap[1][6] === ":"
                            ? this.mangle(cap[1].substring(7))
                            : this.mangle(cap[1]);
                    href = this.mangle("mailto:") + text;
                } else {
                    text = escape(cap[1]);
                    href = text;
                }
                out += '<a href="' + href + '">' + text + "</a>";
                continue;
            }

            // url (gfm)
            if ((cap = this.rules.url.exec(src))) {
                src = src.substring(cap[0].length);
                text = escape(cap[1]);
                href = text;
                out += '<a href="' + href + '">' + text + "</a>";
                continue;
            }

            // tag
            if ((cap = this.rules.tag.exec(src))) {
                src = src.substring(cap[0].length);
                out += this.options.sanitize ? escape(cap[0]) : cap[0];
                continue;
            }

            // link
            if ((cap = this.rules.link.exec(src))) {
                src = src.substring(cap[0].length);
                out += this.outputLink(cap, {
                    href: cap[2],
                    title: cap[3]
                });
                continue;
            }

            // reflink, nolink
            if (
                (cap = this.rules.reflink.exec(src)) ||
                (cap = this.rules.nolink.exec(src))
            ) {
                src = src.substring(cap[0].length);
                link = (cap[2] || cap[1]).replace(/\s+/g, " ");
                link = this.links[link.toLowerCase()];
                if (!link || !link.href) {
                    out += cap[0][0];
                    src = cap[0].substring(1) + src;
                    continue;
                }
                out += this.outputLink(cap, link);
                continue;
            }

            // strong
            if ((cap = this.rules.strong.exec(src))) {
                src = src.substring(cap[0].length);
                out += "<strong>" + this.output(cap[2] || cap[1]) + "</strong>";
                continue;
            }

            // em
            if ((cap = this.rules.em.exec(src))) {
                src = src.substring(cap[0].length);
                out += "<em>" + this.output(cap[2] || cap[1]) + "</em>";
                continue;
            }

            // code
            if ((cap = this.rules.code.exec(src))) {
                src = src.substring(cap[0].length);
                out += "<code>" + escape(cap[2], true) + "</code>";
                continue;
            }

            // br
            if ((cap = this.rules.br.exec(src))) {
                src = src.substring(cap[0].length);
                out += "<br>";
                continue;
            }

            // del (gfm)
            if ((cap = this.rules.del.exec(src))) {
                src = src.substring(cap[0].length);
                out += "<del>" + this.output(cap[1]) + "</del>";
                continue;
            }

            // text
            if ((cap = this.rules.text.exec(src))) {
                src = src.substring(cap[0].length);
                out += escape(cap[0]);
                continue;
            }

            if (src) {
                throw new Error("Infinite loop on byte: " + src.charCodeAt(0));
            }
        }

        return out;
    };

    /**
     * Compile Link
     */

    InlineLexer.prototype.outputLink = function (cap, link) {
        if (cap[0][0] !== "!") {
            return (
                '<a href="' +
                escape(link.href) +
                '"' +
                (link.title ? ' title="' + escape(link.title) + '"' : "") +
                ">" +
                this.output(cap[1]) +
                "</a>"
            );
        } else {
            return (
                '<img src="' +
                escape(link.href) +
                '" alt="' +
                escape(cap[1]) +
                '"' +
                (link.title ? ' title="' + escape(link.title) + '"' : "") +
                ">"
            );
        }
    };

    /**
     * Smartypants Transformations
     */

    InlineLexer.prototype.smartypants = function (text) {
        if (!this.options.smartypants) return text;
        return text
            .replace(/--/g, "—")
            .replace(/'([^']*)'/g, "‘$1’")
            .replace(/"([^"]*)"/g, "“$1”")
            .replace(/\.{3}/g, "…");
    };

    /**
     * Mangle Links
     */

    InlineLexer.prototype.mangle = function (text) {
        var out = "",
            l = text.length,
            i = 0,
            ch;

        for (; i < l; i++) {
            ch = text.charCodeAt(i);
            if (Math.random() > 0.5) {
                ch = "x" + ch.toString(16);
            }
            out += "&#" + ch + ";";
        }

        return out;
    };

    /**
     * Parsing & Compiling
     */

    function Parser(options) {
        this.tokens = [];
        this.token = null;
        this.options = options || marked.defaults;
    }

    /**
     * Static Parse Method
     */

    Parser.parse = function (src, options) {
        var parser = new Parser(options);
        return parser.parse(src);
    };

    /**
     * Parse Loop
     */

    Parser.prototype.parse = function (src) {
        this.inline = new InlineLexer(src.links, this.options);
        this.tokens = src.reverse();

        var out = "";
        while (this.next()) {
            out += this.tok();
        }

        return out;
    };

    /**
     * Next Token
     */

    Parser.prototype.next = function () {
        return (this.token = this.tokens.pop());
    };

    /**
     * Preview Next Token
     */

    Parser.prototype.peek = function () {
        return this.tokens[this.tokens.length - 1] || 0;
    };

    /**
     * Parse Text Tokens
     */

    Parser.prototype.parseText = function () {
        var body = this.token.text;

        while (this.peek().type === "text") {
            body += "\n" + this.next().text;
        }

        return this.inline.output(body);
    };

    /**
     * Parse Current Token
     */

    Parser.prototype.tok = function () {
        switch (this.token.type) {
            case "space": {
                return "";
            }
            case "hr": {
                return "<hr>\n";
            }
            case "heading": {
                return (
                    "<h" +
                    this.token.depth +
                    ">" +
                    this.inline.output(this.token.text) +
                    "</h" +
                    this.token.depth +
                    ">\n"
                );
            }
            case "code": {
                if (this.options.highlight) {
                    var code = this.options.highlight(
                        this.token.text,
                        this.token.lang
                    );
                    if (code != null && code !== this.token.text) {
                        this.token.escaped = true;
                        this.token.text = code;
                    }
                }

                if (!this.token.escaped) {
                    this.token.text = escape(this.token.text, true);
                }

                return (
                    "<pre><code" +
                    (this.token.lang
                        ? ' class="' +
                          this.options.langPrefix +
                          this.token.lang +
                          '"'
                        : "") +
                    ">" +
                    this.token.text +
                    "</code></pre>\n"
                );
            }
            case "table": {
                var body = "",
                    heading,
                    i,
                    row,
                    cell,
                    j;

                // header
                body += "<thead>\n<tr>\n";
                for (i = 0; i < this.token.header.length; i++) {
                    heading = this.inline.output(this.token.header[i]);
                    body += this.token.align[i]
                        ? '<th align="' +
                          this.token.align[i] +
                          '">' +
                          heading +
                          "</th>\n"
                        : "<th>" + heading + "</th>\n";
                }
                body += "</tr>\n</thead>\n";

                // body
                body += "<tbody>\n";
                for (i = 0; i < this.token.cells.length; i++) {
                    row = this.token.cells[i];
                    body += "<tr>\n";
                    for (j = 0; j < row.length; j++) {
                        cell = this.inline.output(row[j]);
                        body += this.token.align[j]
                            ? '<td align="' +
                              this.token.align[j] +
                              '">' +
                              cell +
                              "</td>\n"
                            : "<td>" + cell + "</td>\n";
                    }
                    body += "</tr>\n";
                }
                body += "</tbody>\n";

                return "<table>\n" + body + "</table>\n";
            }
            case "blockquote_start": {
                var body = "";

                while (this.next().type !== "blockquote_end") {
                    body += this.tok();
                }

                return "<blockquote>\n" + body + "</blockquote>\n";
            }
            case "list_start": {
                var type = this.token.ordered ? "ol" : "ul",
                    body = "";

                while (this.next().type !== "list_end") {
                    body += this.tok();
                }

                return "<" + type + ">\n" + body + "</" + type + ">\n";
            }
            case "list_item_start": {
                var body = "";

                while (this.next().type !== "list_item_end") {
                    body +=
                        this.token.type === "text"
                            ? this.parseText()
                            : this.tok();
                }

                return "<li>" + body + "</li>\n";
            }
            case "loose_item_start": {
                var body = "";

                while (this.next().type !== "list_item_end") {
                    body += this.tok();
                }

                return "<li>" + body + "</li>\n";
            }
            case "html": {
                return !this.token.pre && !this.options.pedantic
                    ? this.inline.output(this.token.text)
                    : this.token.text;
            }
            case "paragraph": {
                return "<p>" + this.inline.output(this.token.text) + "</p>\n";
            }
            case "text": {
                return "<p>" + this.parseText() + "</p>\n";
            }
        }
    };

    /**
     * Helpers
     */

    function escape(html, encode) {
        return html
            .replace(!encode ? /&(?!#?\w+;)/g : /&/g, "&amp;")
            .replace(/</g, "&lt;")
            .replace(/>/g, "&gt;")
            .replace(/"/g, "&quot;")
            .replace(/'/g, "&#39;");
    }

    function replace(regex, opt) {
        regex = regex.source;
        opt = opt || "";
        return function self(name, val) {
            if (!name) return new RegExp(regex, opt);
            val = val.source || val;
            val = val.replace(/(^|[^\[])\^/g, "$1");
            regex = regex.replace(name, val);
            return self;
        };
    }

    function noop() {}
    noop.exec = noop;

    function merge(obj) {
        var i = 1,
            target,
            key;

        for (; i < arguments.length; i++) {
            target = arguments[i];
            for (key in target) {
                if (Object.prototype.hasOwnProperty.call(target, key)) {
                    obj[key] = target[key];
                }
            }
        }

        return obj;
    }

    /**
     * Marked
     */

    function marked(src, opt, callback) {
        if (callback || typeof opt === "function") {
            if (!callback) {
                callback = opt;
                opt = null;
            }

            if (opt) opt = merge({}, marked.defaults, opt);

            var tokens = Lexer.lex(tokens, opt),
                highlight = opt.highlight,
                pending = 0,
                l = tokens.length,
                i = 0;

            if (!highlight || highlight.length < 3) {
                return callback(null, Parser.parse(tokens, opt));
            }

            var done = function () {
                delete opt.highlight;
                var out = Parser.parse(tokens, opt);
                opt.highlight = highlight;
                return callback(null, out);
            };

            for (; i < l; i++) {
                (function (token) {
                    if (token.type !== "code") return;
                    pending++;
                    return highlight(
                        token.text,
                        token.lang,
                        function (err, code) {
                            if (code == null || code === token.text) {
                                return --pending || done();
                            }
                            token.text = code;
                            token.escaped = true;
                            --pending || done();
                        }
                    );
                })(tokens[i]);
            }

            return;
        }
        try {
            if (opt) opt = merge({}, marked.defaults, opt);
            return Parser.parse(Lexer.lex(src, opt), opt);
        } catch (e) {
            e.message +=
                "\nPlease report this to https://github.com/chjj/marked.";
            if ((opt || marked.defaults).silent) {
                return (
                    "<p>An error occured:</p><pre>" +
                    escape(e.message + "", true) +
                    "</pre>"
                );
            }
            throw e;
        }
    }

    /**
     * Options
     */

    marked.options = marked.setOptions = function (opt) {
        merge(marked.defaults, opt);
        return marked;
    };

    marked.defaults = {
        gfm: true,
        tables: true,
        breaks: false,
        pedantic: false,
        sanitize: false,
        smartLists: false,
        silent: false,
        highlight: null,
        langPrefix: "lang-"
    };

    /**
     * Expose
     */

    marked.Parser = Parser;
    marked.parser = Parser.parse;

    marked.Lexer = Lexer;
    marked.lexer = Lexer.lex;

    marked.InlineLexer = InlineLexer;
    marked.inlineLexer = InlineLexer.output;

    marked.parse = marked;

    if (typeof exports === "object") {
        module.exports = marked;
    } else if (typeof define === "function" && define.amd) {
        define(function () {
            return marked;
        });
    } else {
        this.marked = marked;
    }
}).call(
    (function () {
        return this || (typeof window !== "undefined" ? window : global);
    })()
);
